iMac (Retina 5K, 27-inch, 2019)
3 GHz 6-Core Intel Core i5
48 GB 2667 MHz DDR4
Updated to Big Sur the other day - computer is borderline unusable now. Delays are everywhere - typing, moving windows, opening programs. GIMP-2.10 became practically unusable, with insane delays for even most basic actions (not that I really care much about GIMP, but it used to work just fine, and now it doesn't, and delays are most obvious in that program). I regret updating so much.